b'@techreport{DubhashiRanjan98,'b'\nTITLE = {On positive influence and negative dependence},\nAUTHOR = {Dubhashi, Devdatt and Ranjan, Desh},\nLANGUAGE = {eng},\nNUMBER = {MPI-I-1998-1-018},\nINSTITUTION = {Max-Planck-Institut f{\\"u}r Informatik},\nADDRESS = {Saarbr{\\"u}cken},\nYEAR = {1998},\nDATE = {1998},\nABSTRACT = {We study two notions of negative influence namely negative regression and negative association. We show that if a set of symmetric binary random variables are negatively regressed then they are necessarily negatively associated. The proof uses a lemma that is of independent interest and shows that every binary symmetric distribution has a variable of ``positive influence\'\'. We also show that in general the notion of negative regression is different from that of negative association.},\nTYPE = {Research Report / Max-Planck-Institut f\xc3\xbcr Informatik},\n}\n'